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84288428748 = 223219123228697
BaseRepresentation
bin100111001111111111…
…0110101101011001100
322001120012112211022100
41032133332311223030
52340110314204443
6102415505315100
76042513552216
oct1163776655314
9261505484270
1084288428748
1132823691077
1214404035a90
137c43732514
14411852d5b6
1522d4c193d3
hex139ffb5acc

84288428748 has 36 divisors (see below), whose sum is σ = 224276230360. Its totient is φ = 26617398336.

The previous prime is 84288428743. The next prime is 84288428759. The reversal of 84288428748 is 84782488248.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (84288428743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61613665 + ... + 61615032.

Almost surely, 284288428748 is an apocalyptic number.

It is an amenable number.

84288428748 is an abundant number, since it is smaller than the sum of its proper divisors (139987801612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84288428748 is a wasteful number, since it uses less digits than its factorization.

84288428748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123228726 (or 123228721 counting only the distinct ones).

The product of its digits is 58720256, while the sum is 63.

The spelling of 84288428748 in words is "eighty-four billion, two hundred eighty-eight million, four hundred twenty-eight thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 114 171 228 342 684 123228697 246457394 369686091 492914788 739372182 1109058273 1478744364 2218116546 2341345243 4436233092 4682690486 7024035729 9365380972 14048071458 21072107187 28096142916 42144214374 84288428748